Legion

• Roman legion, the basic military unit of the ancient Roman army
• Aviazione Legionaria, Italian air force during the Spanish Civil War
• A legion is the regional unit of the Italian carabinieri
• Spanish Legion, an elite military unit within the Spanish Army
• Condor Legion, a unit of military personnel from the air force and army of Nazi Germany
• French Foreign Legion, a part of the French Army, created for foreign nationals willing to serve in the French Armed Forces
• International Legion (Ukraine), a Ukrainian foreign volunteer wing of the 2022 Russo-Ukrainian war
• HMS Legion (1914), a Royal Navy World War I destroyer
• HMS Legion (G74), a Royal Navy World War II destroyer sunk in 1942
• Legion of the United States, a reorganization of the United States Army from 1792 to 1796
• Various military legions, often composed of soldiers from a specific ethnic, national, religious or ideological background

• American Legion, an organization of American veterans
• Royal British Legion, a UK charity providing support for members of the British Armed Forces and their dependents
• Royal Canadian Legion, a non-profit Canadian veterans' organization
• South African Legion of Military Veterans, the oldest veterans organization organisation in South Africa
• Society of the Cavaliers of the Order of Lāčplēsis & Freedom Fighters, also known as the Legion, a right-wing veterans' organisation founded by Voldemārs Ozols (1884–1949)

• Legion (Marvel Comics), a Marvel Comics antihero
• Legion (DC Comics), a DC Comics supervillain
• Legion of Super-Heroes, a DC Comics superhero team
• The Legion (comics), one of the comic books where the Legion of Super-Heroes was published
• Legion, a group of characters from the Spawn series
• Legion, a member of the Special Executive
• L.E.G.I.O.N., a 1989 DC Comics title and a team of superheroes, the 20th century forerunners to the Legion of Superheroes
• Ghostbusters: Legion, a 2004 comic book series

• "Legion" (Law & Order: Criminal Intent), the eighteenth episode in the second season of Law & Order: Criminal Intent
• "Legion" (Red Dwarf), the second episode of Red Dwarf Series VI
• Legion (1998 film) a 1998 made-for-television film
• Legion (2010 film) a 2010 apocalyptic supernatural action film
• The Legion (film) a 2020 film starring Mickey Rourke
• Legions (film), a 2022 Argentine supernatural horror film
• Legion (TV series), an FX TV series based on the Marvel Comics character
• "Legion", an eighth-season episode of the television series Smallville
• Legion, an alien kaiju seen in the film Gamera 2: Attack of Legion
• Legion, a fictional computer network in the 2019 film Terminator: Dark Fate

• Legion, a often appearing enemy in the Castlevania series.
• Legion Gold, or simply Legion, a strategy game
• Legions (Magic: The Gathering), a set of cards in the game Magic: The Gathering
• Legion (Mass Effect), the adopted name of a synthetic intelligence in Mass Effect 2
• Legion, central villain of the video game Shadow Man
• Legion, an artificial intelligence unit in Command & Conquer 3: Kane's Wrath
• World of Warcraft: Legion, the sixth World of Warcraft expansion set
• The Legion, a group of killer characters in the horror video game Dead by Daylight
• Watch Dogs: Legion, an action-adventure game and the third installment in the Watch Dogs series
• Caesar's Legion, a faction in Fallout: New Vegas

• Legion, a play by Hal Corley

• Legion (novella series), a series of novellas by Brandon Sanderson
• Legion, a unit in the army of the fictional The Domination
• Legion (Blatty novel), a 1983 novel by William Peter Blatty
• Legion (demons), a group of demons referred to in the Christian Bible
• Legion, by Dan Abnett, book 7 in the Horus Heresy book series
• The Legion (novel), a 2010 historical novel by Simon Scarrow

• Legion Records, started in 1997 by Michael Brosnan under the name Goatboy Records
• Legion (band), a deathcore band from Columbus, Ohio
• Legion, stage name of Erik Hagstedt, Swedish vocalist in the black metal band Marduk
• The Legion, a hip hop group from the Bronx, New York, associated with Black Sheep
• Legion (Deicide album), 1992
• Legion (Creepy Nuts album), 2025
• Legion, a 1985 album by Mark Shreeve
• Legions, a 2013 album by the Danish band Artillery
• "Legion", a song by Candiria from the album Kiss the Lie
• "Legion", a song by HammerFall from the album No Sacrifice, No Victory
• "Legion", a song by Junkie XL from the album Big Sounds of the Drags
• "Legion", a song by Saviour Machine from the album Saviour Machine I
• "Legion", a song by Slaughter Lord, covered by At the Gates in the 2002 re-issue of the album Slaughter of the Soul
• "Legion", a song by Tesseract from the album War of Being
• "Legion", a song by VNV Nation from the album Empires
• "Legions", a song by Winds of Plague from the album Decimate the Weak

• Legion Field, a stadium in Birmingham, Alabama
• Legion Sports Complex, a complex in Wilmington, North Carolina
• Legion Stadium (disambiguation)
• Racine Legion, an American football team from 1922 to 1925

• Legion (demons), the collective name of the demons in the gospel account of the Gerasene demoniac
• Legion (taxonomy), a taxonomic rank in biology
• Legion (software), a computer software system
• Legion Interactive, an Australian telecommunications company
• Legion of the Archangel Michael, a political and militant movement in Romania

• Legion Park (disambiguation)
• Catholic Legion (disambiguation)
• Legionnaire (disambiguation)
• Legionary
• Lenovo Legion, a series of high-end gaming laptops.

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